> This will ssh into nano, disabling ssh X forwarding, and try to launch
> an xterm. If this does not work, then something is wrong with your x
> setup. If it does work, it should work with Open MPI as well.
>
So i guess something is wrong with my X setup.
I wonder what it could be ...
Doing the same with X11 forwarding works perfectly.
But why is X11 forwarding bad? Or differently asked,
does Opem MPI make the ssh connection in such a way
that X11 forwarding is disabled?